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MAX14982 PDF даташит

Спецификация MAX14982 изготовлена ​​​​«Maxim Integrated» и имеет функцию, называемую «All-In-One Ruggedized 5GT/s 2:1/1:2 PCIe Mux and Redriver».

Детали детали

Номер произв MAX14982
Описание All-In-One Ruggedized 5GT/s 2:1/1:2 PCIe Mux and Redriver
Производители Maxim Integrated
логотип Maxim Integrated логотип 

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MAX14982 Даташит, Описание, Даташиты
MAX14982
All-In-One Ruggedized 5GT/s 2:1/1:2 PCIe Mux
and Redriver with Equalization
General Description
The MAX14982 integrates MUX and redriver functional-
ities, offering an all-in-one solution capable of switching
between multiple hosts or sinks and overcoming circuit-
board losses. The solution is ideal for switching and
redriving high-speed PCIe® 5.0GT/s (Gigatransfers per
second) signals and operates from a single +3.3V supply.
The IC features bidirectional redrivers with built-in inde-
pendent programmable equalization, output preemphasis,
and boost that overcome transmission line noise while
preserving signal integrity at the receiver.
The MAX14982 utilizes advanced power-saving tech-
niques where power consumption is reduced by entering
standby mode when no drive is connected. The device
also features flow-through pin outs to simplify routing and
increase layout flexibility.
The MAX14982 is available in a space-saving, 42-pin
3.5mm x 9mm, TQFN package optimal reducing layout
complexity as compared to stand-alone mux and redriver
solutions. The MAX14982 is specified over the -40°C to
+85°C industrial operating temperature range.
Applications
● Industrial/Embedded PCs
● Ruggedized Server/Carrier Boards
● Test Equipment
● Medical Equipment
Benefits and Features
● Fully Integrated for Ease of Use and Design
Flexibility
Capable of Switching Between Multiple Hosts and
Sinks While Overcoming Board Losses
Optimized for PCIe Gen II (5.0GT/s); Gen I
(2.5GT/s) Compatible
Three Levels of Independent Programmable Input
Equalization and Output Deemphasis Up to 6bB
● High Level of Performance to Overcome Noise in
Lossy Channels
Random Jitter: 0.5psRMS (typ)
Deterministic Jitter: 20psp-p (typ)
Equalization Permits Placement Up to 30in FR4
● Robust Solution for Harsh Environments
Industrial Temperature Rated: -40°C to +85°C
±2.5kV Human Body Model (HBM) Protection on
All Pins
Housed in a Flow-Through (3.5mm x 9.5mm)
TQFN Package for Resistance to Vibrations/
Shocks
Pin Configuration
TOP VIEW
PCIe is a registered trademark of PCI-SIG Corp.
38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22
ODEB0 39
ODEB1 40
ODEA0 41
ODEA1 42 +
MAX14982
21 INEQB0
20 INEQB1
19 INEQA0
*EP 18 INEQA1
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
TQFN
*CONNECT EXPOSED PAD (EP) TO GND.
Ordering Information appears at end of data sheet.
19-6717; Rev 1; 1/15









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MAX14982 Даташит, Описание, Даташиты
MAX14982
All-In-One Ruggedized 5GT/s 2:1/1:2 PCIe Mux and
Redriver with Equalization
Absolute Maximum Ratings
(Voltages referenced to GND.)
VCC........................................................................-0.3V to +4.0V
All Other Pins (Note 1) ............................. -0.3V to (VCC + 0.3V)
Continuous Current, IN_P, IN_M, OUT_P, OUT_M...........±30mA
Peak Current, IN_P, IN_M, OUT_P,
OUT_M (for 10kHz, 1% duty cycle) ............................±100mA
Continuous Power Dissipation (TA = +70°C)
42-Pin TQFN (derate 34.5mW/°C above +70°C) ......2758mW
Junction-to-Case Thermal Resistance
θJC (Note 2)..................................................................+2°C/W
Junction-to-Ambient Thermal Resistance
θJA (Note 2)................................................................+29°C/W
Operating Temperature Range............................ -40°C to +85°C
Junction Temperature Range............................ -40°C to +150°C
Storage Temperature Range............................. -65°C to +150°C
Lead Temperature (soldering, 10s).................................. +300°C
Note 1: All I/O pins are clamped by internal diodes.
Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Electrical Characteristics
(VCC = +3.0V to +3.6V, CCL = 75nF coupling capacitor on each output, RL = 50I on each output, TA = -40°C to +85°C, unless other-
wise noted. Typical values are at VCC = +3.3V and TA = +25°C.) (Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
DC PERFORMANCE
Power-Supply Range
Supply Current
VCC
ICC
EN = VCC
EN = GND
INEQ_ = ODE_ = GND
INEQ_ = ODE_ = VCC
3.0
3.6
120 150
160 205
50
V
mA
Input Impedance, Differential
Output Impedance, Differential
ZRX-DIFF-DC
ZTX-DIFF-DC
DC
DC
80 100 120
80 100 120
Ω
Ω
Common-Mode Resistance to
GND, Input Terminations Not
Powered
ZRX-HIGH-
IMP-DC
VIN_P = VIN_M = -150mV to +200mV
50
Common-Mode Resistance
to GND, Input Terminations
Powered
ZRX-DC
DC
40 50 60
Ω
Output Short-Circuit Current
Common-Mode Delta, Between
Active and Idle States
DC Output Offset, During Active
State
DC Output Offset, During
Electrical Idle
AC PERFORMANCE
Input Return Loss, Differential
ITX-SHORT Single-ended (Note 4)
VTX-CM-DC-
ACTIVE-IDLE-
DELTA
VTX-ACTIVE-
DIFF-DC
ABS(VOUT_P - VOUT_M)
VTX-IDLE-DIFF-
DC
ABS(VOUT_P - VOUT_M)
RLRX-DIFF
0.05GHz < f ≤ 1.25GHz (Note 4)
1.25GHz < f ≤ 2.5GHz (Note 4)
90
-100
-25
-10
10
8
+100
mA
mV
+25 mV
+10 mV
dB
www.maximintegrated.com
Maxim Integrated 2









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MAX14982 Даташит, Описание, Даташиты
MAX14982
All-In-One Ruggedized 5GT/s 2:1/1:2 PCIe Mux and
Redriver with Equalization
Electrical Characteristics (continued)
(VCC = +3.0V to +3.6V, CCL = 75nF coupling capacitor on each output, RL = 50I on each output, TA = -40°C to +85°C, unless other-
wise noted. Typical values are at VCC = +3.3V and TA = +25°C.) (Note 3)
PARAMETER
Input Return Loss, Common
Mode
Output Return Loss, Differential
Output Return Loss, Common
Mode
SYMBOL
RLRX-CM
RLTX-DIFF
RLTX-CM
CONDITIONS
0.05GHz < f ≤ 2.5GHz (Note 4)
0.05GHz < f ≤ 1.25GHz (Note 4)
1.25GHz < f ≤ 2.5GHz (Note 4)
0.05GHz < f ≤ 2.5GHz (Note 4)
MIN TYP MAX UNITS
6 dB
10
8 dB
6 dB
Differential Input Signal Range,
Redriver Operation
VRX-DIFF-PP 0.05GHz < f ≤ 2.5GHz
150 1200 mVP-P
Differential Output Voltage, Full
Swing, No Deemphasis
VTX-DIFF-PP
2 x ABS(VOUT_P - VOUT_M),
ODE_1 = GND, ODE_0 = VCC
(see Table 1), f = 500MHz
800 1000 1300 mVP-P
Differential Output Voltage, Low
Swing, No Deemphasis
VTX-DIFF-PP-
LOW
2 x ABS(VOUT_P - VOUT_M),
ODE_1 = ODE_0 = GND (see Table 1),
f = 500MHz
600
750 1000 mVP-P
Output Deemphasis Ratio, 0dB
Output Deemphasis Ratio,
3.5dB
Output Deemphasis Ratio, 6dB
Input Equalization, 0dB
VTX-DE-RATIO- ODE_1 = GND, ODE_0 = VCC or GND,
0dB Figure 1 (see Table 1)
VTX-DE-RATIO- ODE_1 = VCC, ODE_0 = GND, Figure 1
3.5dB
(see Table 1)
VTX-DE-RATIO- ODE_1 = VCC, ODE_0 = VCC, Figure 1
6dB (see Table 1)
VRX-EQ-0dB
INEQ_1 = GND, INEQ_0 = GND or VCC
(see Table 2)
0
3.5
6
0
dB
dB
dB
dB
Input Equalization, 3.5dB
VRX-EQ-3.5dB
INEQ_1 = VCC, INEQ_0 = GND
(see Table 2)
3.5 dB
Input Equalization, 6dB
VRX-EQ-6dB
INEQ_1 = VCC, INEQ_0 = VCC
(see Table 2)
6 dB
Output Common-Mode Voltage
VTX-CM-AC-PP
MAX(VOUT_P + VOUT_M)/2 -
MIN(VOUT_P + VOUT_M)/2 (Note 4)
100 mVP-P
Propagation Delay
Rise/Fall Time
tPD (Note 4)
tTX-RISE-FALL (Note 5)
160 280 400
30
ps
ps
Rise/Fall Time Mismatch
tTX-RF-
MISMATCH
(Notes 4, 5)
20 ps
Deterministic Jitter
K28.5 ≤ pattern, AC-coupled, RL = 50Ω,
tTX-DJ-DD effects of deemphasis deembedded
20 psP-P
(Note 4), 5GT/s
Random Jitter
Electrical Idle Entry Delay
tTX-RJ-DD
tTX-IDLE-SET-
TO-IDLE
D10.2 pattern, f > 1.5MHz
From input to output
0.5 1.4 psRMS
15 ns
www.maximintegrated.com
Maxim Integrated 3










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